Answer:
ΔT = ΔT0 e^-K T
As I understand Newton's Law of Cooling
ΔT at any time is the difference between the temperature and the surroundings
Originally ΔT0 = 95 - 22 difference between 95 and room temperature
65 - 22 = 33 = 73 e^-KT where t is time to cool to 65 deg
ln (33/73) = -KT K = .794 / 5 = .159 where 5 is time to cool to 65 deg
40 - 22 = 73 e^-.159 T where t is time to cool to 40 deg
18 = 73 e^-.159 T
ln (18 / 73) = -.159 T
T = 8.8 min
It would take 8.8 min for the object to cool to 40 deg C
Suppose the object cooled from 95 to 90 deg, then
ln 68 / 73 = -.159 T and T = .45 min
21 and 49 GCF is 7
So then you divide 7 out of both and get 7(3m-7n)
Answer:
2
Step-by-step explanation:
Answer
Anything in front of the x. Everything else is irrelevant unless it changes the value of the number in front of the x.
In this case the slope is 2.
New Question
If the equation was given as 3y = 6x - 8, then the slope would be
y = 6/3x - 8/3
y = 2x - 8/3 which turns out to be 2 not 6
Answer: 1/4
Step-by-step explanation:
2-1/2 ==> 1/2
3-1/3 ==> 2/3
4-1/4 ==> 3/4
1/2 x 2/3 x 3/4 = 6/24
*Reduce 6/24*
1/4
Answer:
Since, the sides are proportional. Therefore, the two triangles are similar.
Step-by-step explanation:
Since:
and
also,
i.e., The sides are proportional.
Therefore, the two triangles are similar.
